Edit: It has been brought to my attention (in posts on my thread where I discussed my cracked seatpost) that the install manual specifically points out that you shouldn't do exactly what I did to crack my posts. I'm an idiot because I didn't see that and cracked at least 2 posts because of it. Elitaone deserves a fair bit of credit for actually having that instruction noted in their manual (even if I'm too dumb to notice it).
I actually just came here to make a post about my Elitaone carbon seatpost that cracked during install today.
I had one fail while riding a month or two back and I just got around to replacing it due to the difficulty in removing the broken seatpost from the frame. I didn't blame Elitaone for the first one because I'm 99% certain I had cracked it, initially, while adjusting the seat one day without a torque wrench. It seemed fine afterward, though, and I happily rode it for a couple months and just avoided adjusting the height again. Well, I was playing chicken with it and it failed while riding in about the worst time and location possible. Again... not really the seatposts fault and I can't believe I rode on it that long and under the conditions I did before it failed.
This time, though... I was DAMN sure to use a torque wrench, and even bought a newer, better torque wrench so that I wouldn't be tempted to make adjustments without it again. I was making some final tweaks to the seat height and, about the 2nd or 3rd time I adjusted it, I heard a sharp crack right about 4.5 Nm of torque. I pulled it off and cleaned it. Sure enough, it's cracked. I think I'm going to go with a different option this time, and I'm no longer so sure about Elitaone. Which is a little scary because I have one of these on 2 of my other bikes.
